National Tube Supply is located in University Park, IL, just outside of Chicago. They are home to the nation's largest single location inventory of Hot-Finished Seamless (HFS) carbon/alloy tubing, pipe, Drawn Over Mandrel (DOM) mechanical tubing and Cold Drawn Seamless (CDS) carbon tubing. They offer best in class cutting services and have an outstanding reputation for on time delivery. They are one of the leading metal service centers in the United States and continue to garner accolades and win awards for their high level of service.